Page 3515 of 4323
BE267±05
N30017
N13468
± BODY ELECTRICALWIRELESS DOOR LOCK CONTROL SYSTEM
BE±103
3507 Author: Date:
2005 SEQUOIA (RM1146U)
REPLACEMENT
1. REPLACE TRANSMITTER (LITHIUM) BATTERY
NOTICE:
Great caution should be taken for handling each compo-
nent as they are precision electronic components.
(a) Using a screwdriver, remove the cover.
NOTICE:
Do not pry out the cover forcibly.
HINT:
Push the cover with a finger as shown in the illustration, so that
there becomes clearance, then pry out the cover from that
clearance.
(b) Remove the transmitter.
(c) Remove the battery (lithium battery).
NOTICE:
Do not push the terminals with a finger.
If prying up the battery (lithium battery) forcibly to re-
move, the terminals are deformed.
(d) Install a battery (lithium battery) as shown in the illustra-
tion.
NOTICE:
Face the battery upward. Take care not to deform the termi-
nals.
(e) Check that the rubber cover is not distorted or slipped off,
and install the cover.
Page 3516 of 4323

BE±104
± BODY ELECTRICALWIRELESS DOOR LOCK CONTROL SYSTEM
3508 Author: Date:
2005 SEQUOIA (RM1146U)
2. REPLACE DOOR CONTROL RECEIVER AND TRANS-
MITTER
NOTICE:
When replacing the door control receiver and transmitter,
registration of recognition code is necessary because they
are provided as single components.
(a) Select one of the operations mode should be performed
from the following modes.
Add mode
Rewrite mode
Prohibition mode
Confirmation mode
HINT:
The add mode is used to retain codes already registered
while you register new recognition codes. This mode is
used when adding a transmitter. However, if the number
of registered codes exceeds 4 codes, previously regis-
tered codes are correspondingly erased in order, starting
from the first registered code.
The rewrite mode is used to erase all previously regis-
tered codes and register only new recognition codes.
The prohibition mode is used to erase all registered codes
and cancels the wireless door lock function. Use this
mode when the transmitter is lost.
The confirmation mode is for confirming how many recog-
nition codes are already registered before you register
additional recognition codes.
(b) Follow the chart on the following pages to register the
transmitter recognition code at the wireless door lock con-
trol receiver.
HINT:
When procedure is out of the specified, the operation re-
turns to normal operation.
Maximum 4 recognition codes can be registered.
Page 3517 of 4323
± BODY ELECTRICALWIRELESS DOOR LOCK CONTROL SYSTEM
BE±105
3509 Author: Date:
2005 SEQUOIA (RM1146U)
Start registration of recognition code
The vehicle should be in the following conditions.
Any door is OPEN. (Other doors are CLOSED)
Insert the key into the ignition key cylinder, then pull it out.
Press the door lock control switch (for manual operation) 5 times to
LOCK/UNLOCK at approx. 1 sec. interval.
1st time 2nd time 3rd time 4th time 5th time
LOCK
OFF
UNLOCK
Approx.
1 sec.Approx.
1 sec.
Close the DRIVER'S door, then open the DRIVER'S door.
Press the door lock control switch again (for manual operation) 5 times to
LOCK/UNLOCK at approx. 1 sec. interval.
1st time 2nd time 3rd time 4th time 5th time
LOCK
OFF
UNLOCK
Approx.
1 sec.Approx.
1 sec.
Insert the key into the ignition key cylinder.
Within
40 secs.
Page 3518 of 4323

BE±106
± BODY ELECTRICALWIRELESS DOOR LOCK CONTROL SYSTEM
3510 Author: Date:
2005 SEQUOIA (RM1146U)
Within
3 secs.
Turn the ignition switch from ON to LOCK at approx. 1 sec. interval 1 to 5 times to select the mode.
Pull out the key plate from the ignition key cylinder.
When add mode or rewrite mode
is selected.When confirmation
mode is selected.
ON
ONON
OFF
OFFOFF
Approx.
1 sec.Approx.
1 sec. Approx. 1 sec.Approx.
1 sec.Approx.
1 sec.
Add mode
Rewrite modeConfirmation mode
ON ± OFF change occurs 1 time
ON ± OFF change occurs 2 timesON ± OFF change occurs 3 times
MPX body ECU automatically performs
the LOCK±UNLOCK operation once
or twice at 1 sec. interval to inform the
operator that either the add mode or
rewrite mode has been selected.
LOCK±UNLOCK occurs once
LOCK±UNLOCK occurs twice
Indicates that add mode has been selected.
Indicates that rewrite mode has been
selected.
1 sec.
LOCK
1 sec.1 sec.
LOCK
UNLOCK
UNLOCK
LOCK
2 secs.2 secs.
UNLOCK MPX body ECU automatically performs the
LOCK±UNLOCK operation 1 to 4 times at
2 sec. interval to inform the operator of
the number of the registered codes.
HINT:
When the number of the registered code
is 0, the operation is automatically
performed 5 times.
Example:
When the operation is performed twice, it
directs that 2 types of recognition code
have been registered.
1st time 2nd time
Registration of recognition code (Confirmation
mode and prohibition mode) is completed.
ON
OFF
Approx.
1 sec.Approx.
1 sec.
Prohibition mode
ON ± OFF change occurs 5 times
When prohibition
mode is selected.
Within
40secs.
Page 3519 of 4323

± BODY ELECTRICALWIRELESS DOOR LOCK CONTROL SYSTEM
BE±107
3511 Author: Date:
2005 SEQUOIA (RM1146U)
MPX body performs LOCK±UNLOCK operation 5 times at a 1 sec.
interval to inform the operator that prohibition mode has been selected.
Press again any switches on the transmitter for more than 1 sec.
MPX body ECU automatically performs LOCK±UNLOCK operation once or
twice at a 1 sec. interval to inform the operator that the receiver has received the
signal from the transmitter.
LOCK±UNLOCK occurs once
LOCK±UNLOCK occurs twice Registration of recognition code is completed.
Registration of recognition code has not been completed.
Recognition code received first time and second time did not match.
Proceed to continue registration
If even one of the following conditions is satisfied, registration of recognition
codes is completed.
40 secs. elapse since the MPX body ECU response.
The driver's door is closed.
The key plate is inserted in the ignition key cylinder.
4 types of recognition codes are registration at one time.
Registration of recognition codes (add mode or rewrite mode) is completed.
Within
3 secs. Within
40 secs.
UNLOCK
Approx.
1 sec.Approx.
1 sec.
When prohibition
mode is selected.
Press the lock and unlock switches on the transmitter simultaneously within 1.5 sec.
If LOCK±UNLOCK operation can not be performed at all, the mode returns to the
normal mode, then start with ºStart registration of recognition codeº.
Proceed to finish registration
Within 40 secs.
Within
3 secs.LOCK
Page 3551 of 4323
START
END
All doors closed. No key in the key cylinder.
Insert the registered master key in the key cylinder.
Ignition switch: LOCK " ON 5 times
Driver's door: Open " Close 6 times
Remove the master key.
Insert the key to be registered in the key cylinder.
Keep ignition switch in ON position for 60 seconds or more.
Remove the master key.
Do you register another key?
Driver's door: Open " Close
within
15 secs.
within
20 secs.
within
10 secs.
within
10 secs.
within
10 secs.*6
*5 *4 *3 *2 *1
No Ye s
10 secs.
or
more
± BODY ELECTRICALENGINE IMMOBILISER SYSTEM
BE±139
3543 Author: Date:
2005 SEQUOIA (RM1146U)
2. REGISTRATION OF ADDITIONAL MASTER KEY AND SUB KEY
Do this operation to register an additional master key and sub key.
Page 3552 of 4323

BE±140
± BODY ELECTRICALENGINE IMMOBILISER SYSTEM
3544 Author: Date:
2005 SEQUOIA (RM1146U)
*1: Insert the master key into the key cylinder.
Turn the ignition switch to the LOCK " ON position 5 times within 15 seconds.
*2: Open and close the driver's door 6 times within 20 seconds after completion of the previous operation.
*3: Remove the master key from the ignition switch and insert another key to be registered in the key cylinder
within 10 seconds after completion of the previous operation.
*4: Turn the ignition switch to the ON position and wait for 60 seconds or more, then key registration will be
completed.
*5: 10 seconds or more elapse after removal of the key or open and close the driver's door, then key registra-
tion will be completed.
*6: When registering multiple keys, insert the key to be registered in the key cylinder.
HINT:
It is possible to register up to 4 master key codes including the registered key code.
It is possible to register up to 2 sub key codes including the registed key code.
When any operation time described above is over, registration mode completes.
When the next procedure is performed while the timer is working, the timer completes counting time,
then the next timer starts.
Page 3553 of 4323

Insert the master key in the key cylinder.
Driver's door: Open " Close 7 times Ignition switch: LOCK " ON 6 times
Remove the master key.START
END
*1
*2within
15 secs.
within
20 secs.
All doors closed. No key in the key cylinder.
± BODY ELECTRICALENGINE IMMOBILISER SYSTEM
BE±141
3545 Author: Date:
2005 SEQUOIA (RM1146U)
3. ERASURE OF TRANSPONDER KEY CODE
Do this operation to erase transponder key registration from the transponder key computer.
HINT:
Delete all other master and sub±key codes leaving the master key code to use the operation. When using
the key which was used before deletion, it is necessary to register the code again.
*1: Insert the master cylinder into the key cylinder.
Turn the ignition switch to LOCK " ON 6 times within 15 seconds.
*2: Open and close driver's door 7 times and remove the master key within 20 seconds after completion of
the previous operation.
HINT:
When any operation time described above is over, registration mode completes.
When the next procedure is performed while the timer is working, the timer completes counting time,
then the next timer starts.
4. ECU COMMUNICATION ID REGISTRATION
NOTICE:
The ECU communication ID should be registered when the transponder key ECU and/or the
ECM is replaced, in order to match these ECM COMMUNICATION ID.
The engine cannot be started unless the ECM COMMUNICATION ID matches.
(a) Register the ECU communication ID.
(1) After the transponder key ECU and/or the ECM is replaced, turn the ignition switch ON (the en-
gine is not running).
(2) Short the Tc and CG terminals of the DLC3 and leave it as it is for 30 minutes.
(3) Check that the engine starts.